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/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge> Bearing life enhancement experiment Bearing life enhancement test
Initiating experiments is a must-try experiment (StimulationTest), also known as environmental stress-inducing experiment; contrary to the idea of ​​simulation test (SimulationTest); it is the artificial method of applying environmental stress; speeding up the potential of exciting and eradicating products The shortcomings come to the intention of improving the firmness; therefore, the experiment is not only not required to pass; but the more potential defects that need to be provoked, the better; this idea is known for a long time; but the development is much slower than the imitation experiment. First Engaged in the field of rapid experimental skills, and is known as the G of the pioneer. K. Hobbs, K. A. Gray and L. W. Condra et al; they call this experiment a high accelerated lifespan experiment (HALT) and a high accelerated stress sieve (HASS). /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
The former is aligned with the depiction; the latter is directed at production; the center of the method is to apply large stress; step by step; sweeping the faults again and again; hence the step stress method; to obtain high reliability. From the late 1980s to In the early 1990s; successively implemented in various industrial sectors; without exception, it has achieved great success; just because of the commercial competition and the confidentiality of the military industry, there are still many significant effects undeciphered; even the title is not consistent.
L. Condra said in his series of papers: American producers recognized the importance of quality in the 1980s; they knew that shopping malls only endured high quality and low price products; by the 1990s, they realized the importance of reliability; Not only does it require a high rate of unpacking; it also needs to ensure that the function is outstanding during the life of the drawing. This is a new round of reliability; and RET is the best way to satisfy this battle. Condra points out that The reliability of the industry is too passive to perfuse the ever-changing dynamic shopping malls; manufacturers only serve the user's conditions (standards); the use of products does not necessarily lead to the loss in the mall. So a progressive mall in the 1990s The solidity theory is born in time. A solid product should be able to complete the mission that the user needs to complete at any time. In this way, the manufacturer becomes passive and active; knows the user's need for the product; pays attention to the development of the store; Improve the product of the update; the above-mentioned quality and reliability exchanges the proportion of the expanding shopping malls; get rich and profitable returns; thus the reliability is no longer a kind of cost On the contrary, reliability is a kind of property and wealth that the merchant seeks. However, the traditional experiment of reliability is both expensive and time consuming; it is necessary to develop a new economic and useful alternative to get used to this need; This is the theoretical basis of the RET method. RET skills is Physics physics (Physicsoffailure); the fault or failure as the primary goal of the study; through the discovery, study and thorough cure of the disease to achieve the goal of progressive reliability.
For today's highly cluttered electronic or electromechanical products; it is not easy to find potential problems; especially some "ambush" extremely deep or intermittent problems; it is necessary to use forced stress to force it to expose; practice has proved that RET method is effective. China's bearing profession has seldom rumored that the bearing life has provoked experiments; there have been fewer bearing life tests. We communicated with the world's world-class companies in the United States; they knew that they used the experimental skills to test Chinese bearings. The status of the life indicator. Follow China's participation in the WTO; the opening up of the outside world; the bearing life will stimulate the experimental skills will be greatly in China's bearing profession.
Bearing life-strengthening experiment prospects are obvious; to implement the rapid bearing life test; must have the corresponding bearing life enhancement test machine; follow the traditional ZS bearing life test machine "large horse-drawn car" type RET Can achieve a certain degree of success. However, because of the ability to load, layout strength, system rigidity and other skill parameters; the degree of rapidity is far from in place.
China's bearing profession also had doubts about the bearing life enhancement experiment; until the mid-1990s; followed the opening up and communication deepening; the introduction of the German Volkswagen bearing quality evaluation strengthening experiment; this problem was solved. But strengthened The lack of this experimental machine affects the bottleneck of the rapid use of experiments. The study of this aspect of the problem is still relatively lacking.
The ABLT series bearing life-strengthening experimental machine is a self-detailed research and development in China; a new life-cycle machine with completely independent intellectual property rights; and the method of "Automatic Accelerated Biling Life Tester & Fast Failure Analysis System Technology" (A2BLT+F2AST) It is the hardware and software assembly for dealing with this problem. Based on the fund of the former Machinery Industry Machinery Industry; based on the sponsorship effect of the Natural Science Foundation of Zhejiang Province; Hangzhou Bearing Experimental Research Center successfully developed ABLT-1 and ABLT-1A on the hardware. The life-strength-enhanced experimental machine; further developed the A2BLT life-enhanced experimental machine; and serialized the ABLT-type life test machine. The ABLT-2, ABLT-3, ABLT-4, and ABLT-5-type life-strength enhancement experiments were successively developed. machine.
On the other hand, in the software; further study the skills of the rolling bearing rapid failure analysis system. Including the rapid failure diagnosis skills; rapid failure analysis skills; rapid failure treatment skills in three major aspects. Continued improvement through more than ten years; from ABLT- 1 to A2BLT; ABLT series of intensive experimental system skills have been improved; and gradually recognized by domestic and foreign bearing companies and their users; and more than 100 bearing companies and their users have purchased the ABLT series of bearing strengthening test machine. Currently; Economic globalization; the increase of resources localization; the world's bearing manufacturers and large bearing users to improve the quality of the bearing; especially the need to improve the bearing life and its reliability. The world's major companies will further increase the global implementation of bearings. The strength of the acquisition; the trend of the world of bearing life rapid test will be very significant.
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Source: China Bearing Network Time: 2018-07-28